Lah numbers: a(n) = n!*binomial(n-1,8)/9!.

A111599

Lah numbers: a(n) = n!*binomial(n-1,8)/9!.

Terms

    a(0) =1a(1) =90a(2) =4950a(3) =217800a(4) =8494200a(5) =309188880a(6) =10821610800a(7) =371026656000

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